The main menu does not work in Safari. I am using Safari on Windows 8.1 and I believe my client had the same issue with Safari on Mac. The sub-menu opens when I hover over the top items, but it disappears when I try to access sub-menu items.
Never mind. I found the problem.
I used this line in my quick CSS to fix header issues after one of the Enfold updates
#header_main_alternate, #header {
-webkit-transform: translateZ(0);
}
After removing it, menu seems to be working fine. – at least on Safari for Windows …